Brush Type 4 1706 at Stratford depot, 24/2/73. The loco, was one of 5 locos initially built with the Sulzer 2650 HP 12LVA24 engine which proved so troublesome that all 5 locos (D1702 - D1706) were re-engined in the 1968 - 1970 period. ©Norman Preedy/Rail Photoprints